Soldiers in gas masks during training

1600 × 1200

Soldiers on Rooftop

1280 × 800

Soldiers in protective gear

2148 × 1498

person in gas mask with rifle

2592 × 1944

person in gas mask holding rifle

2592 × 1944

soldier in gas mask

3648 × 2359

Soldiers in combat gear running

2100 × 1500

Soldiers with Military Dog — Green

3000 × 1998

Soldiers in gas masks during training

2500 × 1696

Soldier with Military Dog — Brown, Tense

1533 × 851

Marines in field training

4368 × 2912

Soldiers in gas masks at shooting range

3008 × 1960